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US 4,230,102 AGranted
Device for the training of a urine bladder
AssigneeAstra-Sjuco AB
InventorFred V. G. Ekbladh
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AssigneeAstra-Sjuco AB
InventorFred V. G. Ekbladh
Estimating the term…
A device for training a urine bladder which has lost its elasticity due to long term catheterization, whereby it comprises a pressure sensitivity system being arranged to the urethra catheter and a closing-opening unit being controlled by said pressure sensitivity system, which unit is arranged after the pressure sensitivity system seen from the urine bladder. A pressure, which is obtained in the catheter, actuates via the pressure sensitivity system a motor which is arranged to open and close the catheter by means of a mechanical clamping unit.
A device for exercising a urine bladder into which a catheter has been inserted, comprising closing-opening means engaging said catheter, said closing-opening means being normally closed for preventing flow through said catheter, means for detecting the pressure in said catheter between said bladder and said closing-opening means, and actuation means coupled to the pressure detecting means for opening said closing-opening means for a pre-set time period to permit flow through said catheter in response to the detection of a predetermined pressure by said pressure detecting means, said pre-set time period being sufficient to permit said bladder to empty at least substantially, wherein said actuation means is adjustable for opening said closing-opening means at one of a plurality of predetermined pressures in said catheter.
Dependencies are inferred from the claim text.
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Term ended 17 Apr 1998 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
The present invention relates to a device for the training of a urine bladder being catheterized or in any other way elasticity enervated.
The object of the present invention is to obtain a possibility of exercising a urine bladder, which e.g. by way of long term catheterization has been enervated, so that the urine bladder can be filled up to normal volume without influencing the urination reflex to any greater extent.
Long term catheterization of the urine bladder takes place in connection with several surgical incisions of different genesis. At such catheterization a catheter is introduced through the urethra and into the urine bladder and is connected to a so called urine bag, whereupon the urine running into the urine bladder immediately passes on to the urine bag. The sphincter muscle, which normally closes the urine bladder, will after some time become completely enervated and lose its elasticity by way of lack of exercise. Before the removal of the catheter it is thus important that the urine bladder is exercised so that the patient can return to a normal way of living. If urine bladder exercise should not take place, the urine bladder can not be filled as previous but a minimal amount of urine will provoke the urination reflex.
The present invention will be described more in detail below with reference to the accompanying drawing, which shows a preferred embodiment.
1 denotes a urethra catheter, which is connected to a T-tube 2. The T-tube 2 is further connected via a flexible tube 3 to a urine bag 4. The third outlet of the T-tube is connected to a pressure membrane 5, which in its turn is arranged to actuate an electric switch 6, when a certain pressure on the T-tube side of the membrane has been obtained. The electric switch is in its turn arranged to give a start impulse to an electric motor 7. An eccentric wheel 8 is mounted via an angle gear 12 to the outgoing shaft of the electric motor 7, which wheel is arranged to actuate a bar 9, which is loaded by means of a spring 13. The bar 9 is further provided with a pressure bar 10 or a pressure plate arranged angularly against the bar 9, whereby the bar 9 is mounted in a holder-on 14 cooperating with the pressure bar 10. The tube 3 is hereby arranged between the pressure bar 10 and the holder-on 14. On the eccentric wheel 8 an electric switch 15 is further arranged so that when the wheel 8 has revolved one revolution the electric current to the motor 7 is switched off. The motor 7 is thus arranged to revolve the eccentric wheel 8 one revolution only, when a provoking pressure has been obtained. The speed of the motor 7 and/or the gear ratio of the angle gear can hereby be varied so that a revolving of one revolution of the eccentric wheel 8 takes 1-5 min.
The pressure membrane 5 is further adjustably arranged via an adjusting screw 16 so that the pressure which provokes the switch 6 can be varied between 0-750 mm column of water (0-0.01 MPa).